#include<bits/stdc++.h>
using namespace std;
int a[100009];
int n;
    int s,e;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>a[i];
    sort(a+1,a+n+1);
    for(int i=1;i<=n;i++){
        if(a[i]!=a[i-1]){
            s+=e;
            e=0;
        }
        if(s!=0)
            s--;
        e++;
    }
    cout<<s+e;
    return 0;
}
